<html>
  <head>
    <title></title>
    <style>
      svg {
        display:block;
        size:*; /* fills container space */
        border:1px dashed red;
       }
    
    </style>
    <script type="text/tiscript"></script>
  </head>
<body>
  <p>This SVG fills all available space</p>
  <svg viewBox="0 0 190 160">
    <path d="M10 80 Q 52.5 10, 95 80 T 180 80" stroke="black" fill="transparent"/>
  </svg>

</body>
</html>
